Home / 7,176.23-9,902.88-4,192.34

Finding the Fourth Proportional to 7,176.23, 9,902.88 and 4,192.34

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Solution

The fourth proportional to 7,176.23, 9,902.88 and 4,192.34 is: 5,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.23 : 9,902.88 = 4,192.34 : x
  2. Step 2: Convert to fraction form
    7,176.23/9,902.88 = 4,192.34/x
  3. Step 3: Cross multiply
    7,176.23x = 9,902.88 × 4,192.34
  4. Step 4: Simplify right side
    7,176.23x = 41,516,239.94
  5. Step 5: Solve for x
    x = 41,516,239.94/7,176.23
  6. Step 6: Final answer
    x = 5,785.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.